Cap



Patented July 20,l 1926.

UNITED STATES STANLEY M. RUMBQUGH, F YORK, N. Y.

CAP.

Application led November 25, 1924. Serial No. 752,079.

My invention aims to provide an improved means for securing caps to theoutlets of collapsible tubes, sprinkler tops and other receptacles. Anembodiment of the -invention is illustrated in the accompanying drawingsin which Fig. 1 isvan enlarged elevation of the upper portion of acollapsible tubewith a cap secured thereto in closed position;

Fig. 2 is an elevation from the right side of Fig. 1;

Fig. 3 is an elevation viewed in the same direction as Fig. 1 butshowing the cap in open position; *Y Fig. 4 is a view showing the partsbefore their assembly; 1'

Fig. 5 is a detail view of an improved hinge member. l

Referring to the embodiment of the invention illustrated the collapsibletube is providedl with a screw threaded neck 12 having a retaining ring14 screwed thereon. The cap 16 also engages the screw threads of theneck "12 but is provided with means whereby it cannot be separated fromthe tube 10 when fully unscrewed from the neck 12 thereof. The neck 12is provided with a` plain cylindrical portion 18 and the retainertending flange 20 which is adapted. to limit the endwise movement of theretaining ring so as to prevent its being unscrewed entirely from-thecap, the iange 20 beingl The cap 16 is hingedly secured to the re-I Itaining r1ng.14 by an improved connecting member comprising a hinge link24 of substantially lrectangular shape as -shown 1n Fig. 5. This link isrovlded with lplntle portions 26 and 28 whlch are connected by legmembers 30. The cap 16 1s formedwrth an outwardly extending lug 32 whlch1n its initial stage of manu acture extends straight outwardly asillustrated in Fig. 4.

The retainer ring 14 is formed with a similar outwardly extending lugv34. In assembling the parts the hinge link.24 is slipped over the outer'ends ofthe projections 32and 34 and the latter are bent around asindlcated at` 36 and 38 so as to form plvot bearmgs for the pintleportions 26 and 28 respectively of the hinge link 24. The length of thepro- 'ections 32 and 34 is such that when the l are nt' around totheposition shown 1n 1g. 1

greater freedom of Amovement between the cap and the retaining ringland'enables the formation of a hinge connection without the necessity ofdrillingholes in either the cap or :the retaining ring. This is an imortant consideration in manufacture of articles of this class in whichthe cost of the container must be kept to a minimum. A further advantageof connecting the cap to the retainer ring by means of a floating hingelink is that such a connection makes it unnecessary to form the partswith extreme accuracy in order to permit the cap and the retaining IlIlnec It willbe appreciated that the floating hinge link described willpermit the cap to have considerable lateral play rela-f the cap withthose of the threaded neck of to be aligned with the screw threade thetube. It will Vbe readily apparent thatv if the cap were secured by arigid hinge pin to the retainer that the relationship of the parts mustbe very accurate in order that they can be properly screwed onto theneck of the tube. With this in mind it will be appreciated that extremeaccuracy would be required in locating the holes' for the rigid pintlepinsof an ordinary hinge connection. On the other hand, because of theplay alllowedby the employment of a floating hinge link as abovedescribed it is appreciated that extreme accuracy in manufacture is notnec'- essary and hence the cost of producing caps according to mvinvention is materially less than the cost o manufacturing capsheretofore used.

Though I have describedfwith great particularity of detail certainembodiments of A Vthe invention, it is not to be understood therefromthat the invention is restricted to the particular embodimentsdisclosed. Various modifications in detail and in the arthose skilled inthe art without departure from the invention as defined in the followinclaims.

at I `claim is;

cap adapted toY be screwed. thereon, a retam- .105 rangement of theparts may be Ymade byv er swivelled onsaid container, and a hinge linkhaving spaced pintle portions pivotally engaging integral projectionsformed on the cap and retainerrespectively.

2. A container having a threaded neck in combination with a. cap screwedthereon, a retainer swiveled on said neck adapted to permit the cap tobe swung to open position without detachment and a hingev member havingspaced pintle portions engaging the cap and retainer respectivel 3. Acontainer having a, threaded neck in combinationwith a 'cap screwedthereon, a retainer swiveled on said neck adapted to permit the cap tobe swung to open position without detachment and a hinge link ofSubstantially rectangular form having portions. forming spaced pintles,and lugs formed on said cap and said retainer bent to engage said pintleportions, substantially as described.

In witness whereof, I have vhereunto signed my name.

STANLEY M. RUMBOUGH.

